shup2 <-- "Hello to you!"Clicker Questions
to go along with
Modern Data Science with R, 3rd edition by Baumer, Kaplan, and Horton
Introduction to Statistical Learning with Applications in R by James, Witten, Hastie, and Tibshirani
- The reason to take random samples is:1
- to make cause and effect conclusions
- to get as many variables as possible
- it’s easier to collect a large dataset
- so that the data are a good representation of the population
- I have no idea why one would take a random sample
- The reason to allocate/assign explanatory variables is:2
- to make cause and effect conclusions
- to get as many variables as possible
- it’s easier to collect a large dataset
- so that the data are a good representation of the population
- I have no idea what you mean by “allocate/assign” (or “explanatory variable” for that matter)
- Approximately how big is a tweet?3
- 0.01Kb
- 0.1Kb
- 1Kb
- 100Kb
- 1000Kb = 1Mb
- \(R^2\) measures:4
- the proportion of variability in vote margin as explained by tweet share.
- the proportion of variability in tweet share as explained by vote margin.
- how appropriate the linear part of the linear model is.
- whether or not particular variables should be included in the model.
- R / R Studio / Quarto5
- all good
- started, progress is slow and steady
- started, very stuck
- haven’t started yet
- what do you mean by “R”?
- Git / GitHub6
- all good
- started, progress is slow and steady
- started, very stuck
- haven’t started yet
- what do you mean by “Git”?
- Which of the following includes talking to GitHub?7
- changing your name (updating the YAML)
- committing the file(s)
- pushing the file(s)
- some of the above
- all of the above
- What is the error?8
- poor assignment operator
- unmatched quotes
- improper syntax for function argument
- invalid object name
- no mistake
- What is the error?9
- poor assignment operator
- unmatched quotes
- improper syntax for function argument
- invalid object name
- no mistake
3shup <- "Hello to you!"- What is the error?10
- poor assignment operator
- unmatched quotes
- improper syntax for function argument
- invalid object name
- no mistake
shup4 <- "Hello to you!- What is the error?11
- poor assignment operator
- unmatched quotes
- improper syntax for function argument
- invalid object name
- no mistake
shup5 <- date()- What is the error?12
- poor assignment operator
- unmatched quotes
- improper syntax for function argument
- invalid object name
- no mistake
shup6 <- sqrt 10- Do you keep a calendar / schedule / planner?13
- Yes
- No
- Do you keep a calendar / schedule / planner? If you answered “Yes” …14
- Yes, on Google Calendar
- Yes, on Calendar for macOS
- Yes, on Outlook for Windows
- Yes, in some other app
- Yes, by hand
:::
Footnotes
- so that the data are a good representation of the population
- to make cause and effect conclusions
- about 0.1Kb. Turns out that 3.5 billion tweets * 0.1Kb = 350Gb (0.35 Tb). My laptop is pretty good, and it has 36 Gb of memory (RAM) and 4 Tb of storage. It would not be able to work with 3.5 billion tweets.
- the proportion of variability in vote margin as explained by tweet share.
wherever you are, make sure you are communicating with me when you have questions!↩︎
wherever you are, make sure you are communicating with me when you have questions!↩︎
- some of the above (b. committing the file(s) and c. pushing the file(s))
- poor assignment operator
- invalid object name
- unmatched quotes
- no mistake
- improper syntax for a function argument
- I mean, the right answer has to be Yes, right!??!
no right answer here!↩︎